JPH0217547A - Test data generation backup processing system - Google Patents

Abstract

PURPOSE:To facilitate designation of test data of a computer program to improve the work efficiency of test by displaying required information for each execution route of the program to input test data to the program. CONSTITUTION:A route information gathering part 2 and a route selecting condition display part 4 are provided for the purpose of performing the test for each execution route based on the internal logical constitution of a source program 1. The route information gathering part 2 analyzes the source program 1 to discriminate execution routes, and route information 3 consisting of conditions of variables for selection of each of these execution routes is gathered. When receiving the input to designate an execution route from an input device 5, the route selecting condition display part 4 displays information indicating conditions of variables out of route information 3 on a display device 6. By this processing, variables to determine execution routes and values to be set to these variables are easily detected, and test data for each execution route is easily generated.

Description

[Detailed Description of the Invention] [Summary] Regarding the creation of test data to be input into a program for testing a computer program, necessary information is displayed for each program execution path to facilitate the specification of test data. A system for creating test data to be input in order to test a computer program for each execution path based on the internal logical configuration of the program, with the purpose of a test data creation support processing method. , means for identifying the execution path and collecting variable conditions for selecting the execution path for each execution path;
The apparatus is configured to provide means for displaying information indicating variable conditions for selecting the execution path from the collected variable conditions in response to an input specifying the execution path.

[Industrial application field]

The present invention relates to a processing method for manually creating test data for testing a computer program, and particularly for supporting the creation of test data for testing each execution path of a program.

[Prior art and problems to be solved by the invention] Testing of a program in a computer is generally performed by inputting appropriate test data into the program and having it processed, and checking the correctness of the output data as a result of execution. .

In this case, there are cases in which the program is tested by focusing only on its functions as seen from the outside, and in cases in which the test is conducted by focusing on the internal logical structure of the program and inputting test data designed to execute the desired execution path. In some cases, the latter is used, for example, as a testing method that makes it possible to ensure that tests cover all different execution paths of a program.

The execution path of a program is generally formed by program logic that branches based on the values of variables, so in order to follow a certain execution path during program execution, the branch direction must be determined at each related branch point. It is necessary to set the required values to the specified variables, and the values of those variables can be set directly or indirectly by the values of so-called external variables, which are set with data given as input data to the program from outside the program. controlled by.

Therefore, when testing a program that focuses on the internal logical configuration as described above, the tester decodes the program and identifies the variables and their conditions that need to be set in order to pass through each execution path. Variable values had to be specified to create test data, but this was a very time-consuming task.

An object of the present invention is to provide a test data creation support processing method that displays necessary information for each program execution path and facilitates the specification of test data.

[Means to solve the problem]

FIG. 1 is a block diagram showing the configuration of the present invention.

The figure shows the configuration of the test data creation support processing method, where 2 is a path information collection unit that analyzes the source program to identify the execution path and collects path information 3 for each execution path, and 4 is the path from the input device 5. This is a route selection condition display unit that displays required information of the route information 3 on the display device 6 according to the designation.

With the above processing method, it is possible to easily know the variables that determine the execution path and the values that should be set for those variables.
It becomes easy to create test data for each execution route.

[For production]

A system for creating test data to be input in order to test a computer source program 1 for each execution route based on the internal logical configuration of the program includes a route information collection unit 2 for supporting test data creation; A route selection condition display section 4 is provided.

The path information collection unit 2 analyzes the source program 1, identifies execution paths, and collects path information 3 consisting of variable conditions for selecting the execution path for each execution path.

When the route selection condition display unit 4 receives an input designating an execution route from the input device 5, it displays information indicating variable conditions for selecting the execution route from the route information 3 on the display device 6.

〔Example〕

The source program 1 generally has a configuration as illustrated in the processing flowchart in FIG. A branch occurs in the execution path, and in the case of A=10, the execution path further branches at the decision statement 11, so that there are a large number of execution paths as illustrated by ■ to ■ in the figure.

When the route information collection unit 2 reads the source program 1, it first scans the source program in a processing step 20, extracts the judgment statement, and performs a process related to the judgment statement and the judgment condition, according to the processing flow shown in FIG. 3(a), for example. Remember information.

Next, in processing step 21, execution paths formed by combinations of truth and false judgment results of judgment statements are identified, conditions of variables serving as judgment conditions are summarized for each execution path, and path information 3.
Collect as. Here, the variable condition is information indicating the variable name of the required variable and the range of values that variable should take in order to determine the execution path.

Further, in processing step 22, the route and variable conditions are displayed on the display device 6, for example, as shown in FIG. 3(b). The display example in the figure corresponds to the logic of the source program illustrated in FIG.

The tester selects an execution route based on this display, and inputs into the route selection condition display section 4, for example, a designation indicating the correspondence between the test number and the route number of the execution route constituting the test.

Therefore, the route selection condition display unit 4 first extracts the variable condition corresponding to the route number specified in the processing step 7 block 30 from the route information 3 according to the processing flow shown in FIG. In step 31, the source program is referred to, and among the variables, variables that are external variables and whose values need to be set are extracted.

In this case, an external variable is not a variable that is locally defined only within the program, but a variable that is defined in common with other programs, and receives the value set by the other program. Alternatively, it is a variable used to pass a set value to another program, and is declared in a source program by a declaration statement called an EXTERNAL statement, for example.

Next, in processing step 32, the route selection condition display unit 4 displays the variable name and value conditions for selecting the specified execution route for the external variables extracted in processing step 31, for example as shown in FIG. It is displayed on the display device 6.

The tester selects and inputs a value that satisfies the conditions for each of the displayed variables, and the test data generation section 7 creates test data from the values.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, when creating test data to be input into a program for testing a computer program, necessary information is displayed for each execution path of the program, and test data can be specified. This has a significant industrial effect of improving the work efficiency of program testing.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the configuration of the present invention, Fig. 2 is an explanatory diagram of an execution route, Fig. 3 is an explanatory diagram of processing of the route information collection section, and Fig. 4 is an explanation of processing of the route selection condition display section. It is a diagram. In the figure, l is a source program, 2 is a route information collection unit, 3 is route information, 4 is a route selection condition display unit, 5 is an input device, and 6 is a display device. show.

Claims (1)

[Scope of Claims] A system (2 to 7) for creating test data to be input in order to test a computer program (1) for each execution path based on the internal logical configuration of the program, comprising: Analyze (1) to identify the execution path,
Means (2) for collecting variable conditions for selecting the execution path for each execution path; A test data creation support processing method characterized by comprising means (4) for displaying information indicating conditions of variables for selecting.